1) Don't create new statistic Objects for every request
2) Update RemoteInstance objects then replacing them
3) Own Implementations for Local and Remote

Signed-off-by: david <davidscandurra@gmail.com>

1) Use the new statistics system in Networking-Web
2) CloudStatistics: Added getTotalConnections and getAllServices
3) Renamed RemoveHostStatistics to RemoteHostStatistics
4) Add logs and toString() methods
5) Fixed race condition for Slave update
6) Always throw exceptions when socket write fails
7) LocalHostStatistics#getCPULoad() is now also correct when called twice within 20milliseconds
8) ConfigService will now also reports statistics
9) RemoteMasterHost: corrected statistics and health check
10) Make sure HostStatisticListener#update is only called once per update
11) Fixed NPE when RemoteMasterHost is added after MasterService start

Signed-off-by: david <davidscandurra@gmail.com>